when you take a steamy poop and dont wipe, the left over shit dries up on your ass hair giving your ringhole a nice set of dreads. Also known as shit dags.
Daniel: Dude, did you see the dags that Zag had when he Brown-eyed us!?
Cam: Yeah, those Shit Dreads looked like a funnel web spider was trying to crawl out of his asshole, he really needs to wipe better.